When I try to import an .ova file in VirtualBox 5.1.8 I get an error:
Error reading OVA '/filename.ova' (VERR_TAR_UNEXPECTED_EOS).
Result Code: VBOX_E_IPRT_ERROR (0x80BB0005)
I've seen some info that I might need to update VirtualBox or maybe the .ova file is corrupt. I'm hoping it's something else. I don't want to update VirtualBox and the .ova file was quite large and I don't want to download it again. Any other possibilities of what this error might be suggesting?
So the answer in my case turned out to be that an .ova file is basically an .ovf file in tar format, as summarized in a comment by Chris TD on a post: OVA’s and OVF’s: What are they, and what’s the difference?
So I just did
$ tar -xvf filename.ova
to get filename.ovf
which I am able to import in VirtualBox.